The rail pad is an end product made from synthetic elastomer and is used in heavy crane roads and between rail and supporting structure. It is manufactured in various widths determined according to rail base dimensions and standard length of 12 m. The rail pad may be manufactured in different lengths and sizes due to special demands.
Grooved Rubber Sole Plate
The rail pads are a combination of grooved designs and premium quality selected rubbers. This combination makes it highly resilient with anti-weathering properties and increased robustness for railways. The materials used to manufacture rubber pads for railway tracks have proven to be a dynamic force by up to 65%. It has allowed the railways to adopt a higher speed and greater axle loads than before.
Studded Rail Pads
Studded Rail Pads are the first choice of rail systems worldwide as they adopt higher speeds and increased standards of passenger comfort and safety.
Studded rail pads can provide excellent impact attenuation, noise suppression, improved passenger comfort, and extended track and ballast life.
Following are the properties of the HDPE/EVA/Rubber.
| HDPE | ||||
| No. | Technical Parameter | Unit | Technical Requirement | Value |
| 1 | Density | g/cm3 | 0.95-0.98 | 0.95 |
| 2 | Tensile Strength | Mpa | ≥19 | 19 |
| 3 | Elongation | % | >80 | 150 |
| 4 | Melting Point | ℃ | 170-190 | 190 |
| 5 | Insulation Resistance | Ω | ≥1×1010 | 3.5 ×1010 |
| 6 | Hardness | A | ≥98 | 98(A) |
| EVA: Polyethylene 80%, Vinyl Acetate 20% | ||||
| No. | Technical Parameter | Unit | Technical Requirement | Value |
| 1 | Density | g/cm3 | 0.95-0.98 | 0.95 |
| 2 | Tensile Strength | Mpa | ≥15 | 16 |
| 3 | Elongation | % | >500 | 550 |
| 4 | Melting Point | ℃ | 170-190 | 170 |
| 5 | Insulation Resistance | Ω | ≥1×1010 | 5.0 ×1010 |
| 6 | Hardness | A | ≥90 | 92(A) |
| Rubber | ||||
| No. | Technical Parameter | Unit | Value | |
| 1 | Stiffness | KN | 90-130 | |
| 2 | Hardness Shore A | ℃ | 72-80degree | |
| 3 | Electronic Resistance | Ω | ≥ 106 | |
| 4 | Tensile Strength before Aging | Mpa | ≥12.5 | |
| 5 | Elongation before Aging | % | ≥250 | |
Studded Rail Pads vs GRSP Rail Rubber Pad
Studded Rail Pads and GRSP (Grooved Rubber Sole Plates) are both advanced rubber pads used in railway tracks to reduce vibration, absorb shock, and protect sleepers, but studded pads often feature a more complex surface (studs/grooves) for superior dynamic stiffness, noise reduction, and high resilience for heavy/high-speed traffic, while GRSP (often just grooved) focuses on cushioning and preventing sleeper abrasion with simpler grooved designs, common in standard concrete sleeper applications like Indian Railways.
The key difference lies in their specific design elements (studs vs. simple grooves) and how they balance low initial stiffness (for compliance) with high stiffness under load (for stability) to meet demands of heavier axle loads and faster trains.
As a professional rubber rail pad manufacturer GNEE RAIL can produce various standards of rubber rail pads and other rail fasteners. If you want to build a railway line, do not hesitate to contact us, we can supply all types of rubber rail pads with different materials. If necessary, we can make customized rubber rail pad production.
Send your special customization requirements to GNEE.